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Official data from INPI

PROCESSO PARA A DESIDROGENAÇÃO DE HIDROCARBONETOS PARAFÍNICOS.

Em AnáliseInvention Patent

Application data

Number

PI8501444

Type

Invention Patent

Filing

03/29/1985

Publication

11/26/1985

Progress at the INPI

  1. Filing03/29/85
  2. Publication11/26/85
  3. Examination07/08/86
  4. Allowance05/25/93
  5. Grant10/26/93
  6. Expired07/15/08

The letters patent expired on 07/15/2008: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

Talk to a specialist

Latest action published by the INPI: 07/08/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Uop Inc.

US

See this company's full portfolio

Inventors

B. V. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

596,772 · 04/04/1984

US

596,867 · 04/04/1984

US

637,234 · 08/02/1984

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

07/08/1986

RPI 820

Publicação do pedido de patente

#3.1

11/26/1985

RPI 788

Pedido de patente depositado

#2.1

06/18/1985

RPI 765

Carta-patente expirada

#21.1

Patente extinta em 29/03/2000

07/15/2008

RPI 1958

Concessão da patente

#16.1

10/26/1993

RPI 1195

Deferimento

#9.1

05/25/1993

RPI 1173

Exigência - art. 36 da LPI

#6.1

09/03/1991

RPI 1083

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